\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Appendix Table: Predicted probability (average derivatives) of work probits for parents (1-2 kids ages 0-12)}
\begin{tabular}{l*{3}{c}}
\hline\hline
                              &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}\\
                              &\multicolumn{1}{c}{Single Mothers}&\multicolumn{1}{c}{Married Mothers}&\multicolumn{1}{c}{Married Fathers}\\
                              &      b/se         &      b/se         &      b/se         \\
\hline
Mother HS grad                &     0.115\sym{**} &     0.075         &    -0.024         \\
                              &   (0.038)         &   (0.045)         &   (0.026)         \\
Mother some coll.             &     0.153\sym{***}&     0.111\sym{*}  &    -0.008         \\
                              &   (0.039)         &   (0.047)         &   (0.027)         \\
Mother coll+                  &     0.271\sym{***}&     0.189\sym{***}&     0.028         \\
                              &   (0.053)         &   (0.049)         &   (0.031)         \\
Mother's age                  &    -0.005\sym{*}  &    -0.000         &     0.001         \\
                              &   (0.002)         &   (0.003)         &   (0.002)         \\
Mother white                  &     0.047         &    -0.019         &     0.056\sym{***}\\
                              &   (0.029)         &   (0.022)         &   (0.012)         \\
Num children age 0-5          &    -0.024         &    -0.034         &     0.006         \\
                              &   (0.055)         &   (0.038)         &   (0.023)         \\
Num of children               &    -0.004         &    -0.001         &    -0.010         \\
                              &   (0.017)         &   (0.014)         &   (0.007)         \\
Age of youngest child         &     0.007         &     0.012         &     0.002         \\
                              &   (0.009)         &   (0.007)         &   (0.004)         \\
5.age                         &     0.000         &     0.000         &     0.000         \\
                              &       (.)         &       (.)         &       (.)         \\
6.age                         &    -0.032         &    -0.075         &    -0.007         \\
                              &   (0.075)         &   (0.054)         &   (0.031)         \\
7.age                         &    -0.012         &    -0.010         &     0.014         \\
                              &   (0.070)         &   (0.051)         &   (0.030)         \\
8.age                         &    -0.054         &     0.012         &     0.007         \\
                              &   (0.074)         &   (0.051)         &   (0.030)         \\
9.age                         &     0.003         &    -0.039         &     0.006         \\
                              &   (0.068)         &   (0.052)         &   (0.029)         \\
10.age                        &     0.021         &    -0.039         &    -0.016         \\
                              &   (0.067)         &   (0.052)         &   (0.031)         \\
11.age                        &     0.038         &    -0.033         &    -0.007         \\
                              &   (0.064)         &   (0.052)         &   (0.030)         \\
12.age                        &    -0.028         &    -0.003         &    -0.013         \\
                              &   (0.069)         &   (0.052)         &   (0.031)         \\
1997.year                     &     0.000         &     0.000         &     0.000         \\
                              &       (.)         &       (.)         &       (.)         \\
2002.year                     &     0.018         &     0.074\sym{***}&     0.071\sym{***}\\
                              &   (0.028)         &   (0.021)         &   (0.012)         \\
2007.year                     &     0.005         &    -0.016         &     0.075\sym{***}\\
                              &   (0.047)         &   (0.040)         &   (0.017)         \\
Father HS grad                &                   &     0.123\sym{***}&     0.007         \\
                              &                   &   (0.036)         &   (0.020)         \\
Father some coll.             &                   &     0.110\sym{**} &     0.005         \\
                              &                   &   (0.041)         &   (0.022)         \\
Father coll+                  &                   &     0.023         &     0.071\sym{**} \\
                              &                   &   (0.041)         &   (0.026)         \\
Father's age                  &                   &    -0.002         &    -0.002         \\
                              &                   &   (0.002)         &   (0.001)         \\
\hline
N                             &       824         &      1753         &      1737         \\
\hline\hline
\end{tabular}
\end{table}
